The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8575355 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 05, 2013

Filed:

Dec. 23, 2011
Applicants:

Mohammad Rezaul Karim, Riyadh, SA;

Md. Akhtaruzzaman, Riyadh, SA;

Ashraful Islam, Riyadh, SA;

Abdulrahman M. Al-ahmari, Riyadh, SA;

Inventors:

Mohammad Rezaul Karim, Riyadh, SA;

Md. Akhtaruzzaman, Riyadh, SA;

Ashraful Islam, Riyadh, SA;

Abdulrahman M. Al-Ahmari, Riyadh, SA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 417/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

Described herein are D-π-A type sensitizers of the formula (I) or (II) having a novel central π-conjugated unit di-thiazolyl-benzodiazole and dye-sensitized electrodes including a substrate having an electrically conductive surface, an oxide semiconductor film formed on the conductive surface, and the above sensitizer of formula (I) or (II), as specified above, supported on the film. A solar cell includes the above electrode, a counter electrode, and an electrolyte deposited there between. The sensitizers of formula (I) and (II) efficiently sensitize the semiconductor materials and show a high solar to electricity conversion efficiency.


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